Shock-absorber.



E'. SCHIMMEL. SHOCK ABSOBQBBR. APPLICATION FILED 13110.11, 1911.

Patented Deo. 10, 1912.

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FARLIBAULT, MNNESGTA. i

SHGCEQBSORBER.

Specilcation of Letters Patent.

Patentes nee. lo, iste.,

Application filed Beceinber 11, i921. Serial No. @41,99%

To all 'wtmn il may concern:

Be it known that l, FnrDoLrN SoHrMMnL,

a citizen of the United States, residing a? scribed and defined in theclaims.

The invention 'is illustrated in tlie'accom panying drawings whereinlike Characters indicate like parts throughout the several views.

Referring to the drawings, Figure l is a View in side elevation showingthe shock absorber connected between the upper and lower members of anelliptical spring, some' parts being broken away; Fig. 2 is e transversesection, laken on the irregular line on Fig. l; and Fig. 3 isatransverse section taken on the line ma :v3 on Fig. l.

The impro'if'ed shock absorber may be apin various diilerent waysbetween spring-connected parts or members, but for the purpose ofillustration, it is shown as directly connected between the upper andlower members of an ordinary elliptical or double' elliptical spring,the said spring members7 for such purpose., having rigidly clamped totheir central portions, suitable lug clips The shock absorber is made upof two principal members, to-wit, a frictional seg? ment 3 and abifurcated or two-part frictionnl clamping arm i. a' projecting arm 5which, as shown, is pivotally connected to the upper lug clip 2, by asuitable bolt or coupling pin G. The frictionnlly acting portion of thesegment is preferably made in the form of a segmental bar 7, which, 'atits central portion is much narrower than at its extremities, best shownin' Fig. 3. The two members which make up the frictional arm 2larepreferably in the form of tempered spring steel straps that embrace thesegment 7 and are pivotn ally connected'to thehub thereof by a bolt Siare located between laterally spaced lugs of the lower lug clips 2, andare pvotally connected to said lugs (see Fig.2) by anatequipped bolt 9,the head of which is seated in a perforation in one of the said lugs.The central portions of the spring straps which make up the said armsil, are inwardly bulged at Ll (see particularly Fig. 3l so that they areformed with ridges that directly engage the frictional faces of the saidsegmental bar 7.

By the bolt 9, the frictional tension betweenthe straps of the arms 4upon the frictional surfaces of the segmental bar 7 may be varied, sethat the absorber may be set for proper co-action with different springsand with different loads which must be carried by the springs.

As is evident, the shock absorber may be applied, as shown, or may beinverted in respect to Fig. l. lso, as is evident, When applied, itexerts a friction which retards .both the compression and recoil of thespring or springs with which it is associated., and thus relieves thebody of the Vehicle from violent shocks and especially from. those duecompression.

The shock absorber will be so set that when running 'on smooth roads, orroads thatl produce but slight vibrations of the springs, the lightestfrictional resistence will be offered to movements of the springsbecause the members 'of the spring friction arms 4 are then engaged withthe narrowest or thinnest portion of the segmental bar 7. .lhe greater'the vibration' of the springs from normal positions, 'the greater ill bethe fric-tional resistance to such movements The segment 3 has due tothe increasing width of the segmental The shock absorber described` isof very small cost, it may be very"easily applied to automobiles andother vehicles, or springsupported bodies, and furthermore, has, inpractice, been found highly efficient for the purposes had in View.

ln the drawings, the running gear and body of the automobile and vehicleare not connected members. However, for the por The other or outer endsof the said straps to sudden recoil of the springs after extreme bar Tin both directions of its central porshown, such parts not constitutingspring-I tightening or loosening the nuts of E l,oa-ense pose of thisease,l the so-called lug clamps 2 may be tre'a'ted as, and are, in fact,springeonnected members.

What I claim is:

l; The combination With relatively movable spring connected members, ofan interposed frictional shock absorber. comprising a frictional segmenthaving an arm pivotally connected to one of said members, a pair ofspring metal straps embracing and frictionally engaging said segment attheir intermediate portions, both of said straps being pivotallyconnected to said segment, and to the other relatively movable member.

2. The combination with relatively movable spring connected members, ofan interposed frietional shock absorber comprising a frictional segmenthaving an arm pivotally connected to one of said members, a pair ofspring metal straps embracing and l rictionally engaging said segment attheir intermediate portions, both of said straps being pivotallyconnected to said segment 4and to the other relatively movable member,

and a nut equipped bolt at the pivotal connection between said strapsand the latter noted relatively movable member, for varying thefrictional engagement of said straps on said segment.

3. rlhe combination with relatively movable spring connected members, ofan interposed frictional shock absorber comprising a frictional segmenthaving an arm pivotally connected to one of said members, a pair ofspring metal straps embracing and frictionally engaging said segment attheir intermediate portions, both of said straps being pivotallyconnected to said segment, and to the other relatively movable member,the intermediate segment engaging portions of said straps being inwardlybulged in cross-section, substantially as described.

In testimony whereof I aiiX my signature 1n presence of two Witnesses:

FRIDOLIN SOHIMMEL. Witnesses f J. W. Ln CROW, Roannr Main.

